stop taking spiriva and call your doctor if your breathing suddenly worsens, your throat or tongue swells, you gehives, or have vision changes or eye pain. tell your doctor if you have glaucoma, problems passing urine or an enlarged prostate, as these may worsen with spiriva. also discuss the medicines you take, even eye drops. side effects may include dry mouth, constipation and trouble passing urine. every day could be a good day to breat better. announcer: ask your doctor if once-daily spiriva is right for you.